Thousands of demonstrators have flooded into a square in Brazil's economic hub, Sao Paulo, for the latest in a historic wave of protests against the state of public transport, schools and other public services.

An online money service accused of laundering £4 billion for criminals was so corrupt that an undercover agent joined under the name “Joe Bogus” of “123 Fake Main Street” in “Completely Made Up City”, a court heard today.